Electromagnetic resonators having slot-located switches for tuning to different frequencies
US4066988A · kind A · utility
12Cited by
2References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 7, 1976 |
| Grant date | Jan 3, 1978 |
| Priority date | — |
| Expiry date | Sep 7, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P7/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a waveguide resonator, either coaxial or noncoaxial, there are inserted spaced slots which establish inductances in series with the waveguide structure at the location of each slot. These slots tune the resonance of the waveguide cavity, which would generally be used in a bandpass filter. Switch means are provided for each slot for discretely altering the value of the inductance established, whereby the resonator or filter may be tuned to a large number of different frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.